Finding the Fourth Proportional to 23,980.16, 32,916.56 and 21,268.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,980.16 : 32,916.56 = 21,268.28 : x
2. Step 2: Convert to fraction form
   23,980.16/32,916.56 = 21,268.28/x
3. Step 3: Cross multiply
   23,980.16x = 32,916.56 × 21,268.28
4. Step 4: Simplify right side
   23,980.16x = 700,078,614.72
5. Step 5: Solve for x
   x = 700,078,614.72/23,980.16
6. Step 6: Final answer
   x = 29,194.08